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161134910 = 2519738167
BaseRepresentation
bin10011001101010…
…11100100111110
3102020012111112122
421212223210332
5312222304120
623553402542
73664424036
oct1146534476
9366174478
10161134910
1182a58052
1245b69452
13274ca201
14175868c6
15e22da25
hex99ab93e

161134910 has 16 divisors (see below), whose sum is σ = 290225376. Its totient is φ = 64413408.

The previous prime is 161134873. The next prime is 161134927. The reversal of 161134910 is 19431161.

It is a self number, because there is not a number n which added to its sum of digits gives 161134910.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15647 + ... + 23813.

It is an arithmetic number, because the mean of its divisors is an integer number (18139086).

Almost surely, 2161134910 is an apocalyptic number.

161134910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161134910 is a deficient number, since it is larger than the sum of its proper divisors (129090466).

161134910 is a wasteful number, since it uses less digits than its factorization.

161134910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 161134910 is about 12693.8926259836. The cubic root of 161134910 is about 544.1640918443.

The spelling of 161134910 in words is "one hundred sixty-one million, one hundred thirty-four thousand, nine hundred ten".

Divisors: 1 2 5 10 1973 3946 8167 9865 16334 19730 40835 81670 16113491 32226982 80567455 161134910